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PS/2 — Personal System/2

Names an IBM computer family associated with legacy keyboard and mouse ports.

Acronym study batch 2 · reviewed 2026-10-20

Why learn PS/2 — Personal System/2?

Names an IBM computer family associated with legacy keyboard and mouse ports.

Where it came from

PS/2 is a product-family designation, not a USB protocol.

• Memory aid (a learning cue, not the expansion): Personal System two left a round keyboard plug.

Build your understanding

Work through these exercises in order. Try the task before opening a reference.

1. Without looking, expand PS/2: Personal System/2.
2. Recall this memory aid: Personal System two left a round keyboard plug.
3. Explain the practical use: Names an IBM computer family associated with legacy keyboard and mouse ports.
4. Explain this distinction: PS/2 is a product-family designation, not a USB protocol.
5. Identify PS/2 in a device specification, architecture diagram, or system inventory.

Documentation and sources

• IEEE 802 LAN/MAN standards (www.ieee802.org)
• IETF Internet standards (www.rfc-editor.org)

Catalog source: technology-maxxing. This page reproduces the existing catalog’s learning material and source links.